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A147042
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Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 0100-0100-1111-0100 pattern in any orientation.
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0
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1, 1, 1, 1, 1, 3, 13, 39, 151, 607, 2057, 13855, 94157, 812183, 7313331, 95388939, 1173110437
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